Solarium. 13 



variety of S. hrvigalinn : The two species agree in general 

 shape, in the narrow umbilicus and in the general color, but in 

 S. lievigatum the main sculpture is spiral while in S. lieevei it is 

 longitudinal. 



S, FULiGiNOSUM, Hinds. n. 4, figs. 47, 48. 



Umbilical crcnulations reddish-brown ; whorls spirally sulcate 

 near the suture, ribbed at the periphery, si)irally sulcate and 

 ribbed above and below tlie peripher^^ and near tlie umbilicus; 

 color livid-white with obliquely radiating dusky-brown blotches 

 and interrupted brown bands near the suture, on the ribs about 

 the periphery and near the umbilicus. Diam. 2 inches. 



Habitat unknown. 



S. viaculatum, Reeve, and S. Hanleyi, Sowb. (PI. 5, figs. 

 55, 5G), are synonyms; the type of the latter is a deformed 

 specimen in which the base is very convex. This species is 

 easily distinguishable b}' the radiating brown blotches. 



S. CuMrNGii, Hanley. PL 5, figs. 57, 58. 



Umbilical crcnulations tinged with reddish-brown ; whorls 

 spirall}^ sulcate near the suture, ribbed at the periphery, spirally 

 sulcate and ribl)ed below the periphery and near the umbilicus ; 

 color livid-yellowish with obliquely radiating, interrupted 

 reddish-chestnut blotches and light chestnut bands at the 

 suture, on the ribs about the periphery and near the umbilicus. 



Diam. 1'5 inches. 



Habitat unknown. 



This species difi"ers from S. fidiginosinn in having the blotches 

 of a lighter color and interrupted and in the absence of a distinct 

 rib above the periphery. It is perhaps only a variety-. 



S. Bairdii, Hanley. PI. 4, fig. 49, 50. 



Whorls with radiating growth-lines broken into five series by 

 spiral sulci, periphery ribbed, spirall}^ sulcate and ribbed below 

 the periphery and near the umbilicus, ribs crenulated ; color pale- 

 fulvous with remote obscure spots. Diam. 20 mill. 



Habitat unknown. 

 S. PLACENTULA, Hinds. PI. 4, fig. 51, 52. 



Shell discoid, ver}' depressed; whorls smooth, regularly spi- 

 rally striated, broadl}^ ribbed at the periphery, spirally sulcate 



